You just get fucked up.

Hello, guys.

I have to write the frustration of my soul now, because I know, there are some people who understand me!
So where do I start, just a few months ago, I had the Lambda probe swapped for a full 280 euros. Yes You hear right, 280 without the Lambda of course, which has cost even more than 40 euros at Unifit! I mean, I still saw the whole thing, because you had to remove the whole X-pipe at the workshop, the probe was finally completely eaten after 250Tkm...the meant 4h work, so far so good.
Now the car ran perfectly for 5 weeks until one day I noticed a huge extra consumption, so about 20-30% more fuel per km is not normal even with this heat, is it?
Then I changed the candles, they were due anyway, so I notice that they are completely black and worn out!
Driven with the new candles, one turned out, again totally mischievous. I to the workshop, they then read out the error memory (after which you initially thought I was stupid) and see there, periodic error of the Lambda probe, the whole runs on emergency program, and therefore totally fat with lots of consumption.
Well, and instead of that the guy from the Werstatt thinks that he would be responsible for it in any way, honor me the next big bill in the future, could finally be that the ECU is in the bucket...logically or?!
Is that actually still normal, or what?I'm just the ass as a Otto-Normal earner, and thus completely at the mercy of Wilkür....or? What am I supposed to do, if the guy doesn't think it's up to you, it's up to the Lambda probe, then I'm allowed to deal with Unifit, and they're going to put it back on the workshop!
Oh, man, you can finish it already...

Greetings

Rainer

Ps: I know that the V8 is a good car, but all mechanics only see dollar signs when you arrive!